[BUG] V3.2 Docker Image Fails on Raspberry Pi When Using Connectors With gRPC Transport

[helsmore]

Describe the bug
When using the v3.2 Docker image on a Raspberry Pi with the gRPC Modbus connector an error occurs because GLIBC_2.33 was not found.

Possibly related: The Dockerfile used to install a particular version of grpcio (v1.40.0), the line that did this was removed recently in b2e3dc7 but the comment that has been left behind after that commit may be relevant here:

thingsboard-gateway/docker/Dockerfile

Lines 25 to 26 in 46d5ce0

	# The default grpcio version of 1.43.0 was broken on ARM v7
	# See this thread: https://groups.google.com/g/grpc-io/c/vjbL3IdZ2Vk?pli=1

The linked discussion thread from that comment suggests pinning the grpcio version at v1.40.0 to fix the GLIBC_2.33 not found error. I suppose that a more proper way to pin the version would be to set it in the docker/requirements.txt file (compared to doing it in the Dockerfile).

If you agree that version pinning is required (to allow use of gRPC connectors when running in Docker on a Pi) then I'm happy to submit a PR.

Connector name (If bug in the some connector):
Modbus

Error traceback (If available):

tb-gateway-tb-gateway-1  | ImportError: /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.33' not found (required by /usr/local/lib/python3.10/site-packages/grpc/_cython/cygrpc.cpython-310-arm-linux-gnueabihf.so)

Full log since container restart:

tb-gateway-tb-gateway-1  | Cannot load GRPC connector!
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:35" - |INFO| - [tb_gateway_service.py] - tb_gateway_service - __init__ - 148 - Gateway starting..."
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:35" - |INFO| - [tb_gateway_service.py] - tb_gateway_service - __init__ - 153 - ThingsBoard IoT gateway version: 3.2"
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:35" - |INFO| - [tb_gateway_mqtt.py] - tb_gateway_mqtt - gw_subscribe_to_attribute - 185 - Subscribed to *|* with id 1 for device *"
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:35" - |ERROR| - [tb_loader.py] - tb_loader - import_module - 72 - /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.33' not found (required by /usr/local/lib/python3.10/site-packages/grpc/_cython/cygrpc.cpython-310-arm-linux-gnueabihf.so)"
tb-gateway-tb-gateway-1  | Traceback (most recent call last):
tb-gateway-tb-gateway-1  |   File "/thingsboard_gateway/tb_utility/tb_loader.py", line 65, in import_module
tb-gateway-tb-gateway-1  |     module_spec.loader.exec_module(module)
tb-gateway-tb-gateway-1  |   File "<frozen importlib._bootstrap_external>", line 883, in exec_module
tb-gateway-tb-gateway-1  |   File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
tb-gateway-tb-gateway-1  |   File "/thingsboard_gateway/grpc_connectors/modbus/modbus_connector.py", line 29, in <module>
tb-gateway-tb-gateway-1  |     from thingsboard_gateway.grpc_connectors.gw_grpc_connector import GwGrpcConnector, log
tb-gateway-tb-gateway-1  |   File "/thingsboard_gateway/grpc_connectors/gw_grpc_connector.py", line 23, in <module>
tb-gateway-tb-gateway-1  |     from thingsboard_gateway.grpc_connectors.gw_grpc_client import GrpcClient
tb-gateway-tb-gateway-1  |   File "/thingsboard_gateway/grpc_connectors/gw_grpc_client.py", line 17, in <module>
tb-gateway-tb-gateway-1  |     import grpc
tb-gateway-tb-gateway-1  |   File "/usr/local/lib/python3.10/site-packages/grpc/__init__.py", line 22, in <module>
tb-gateway-tb-gateway-1  |     from grpc import _compression
tb-gateway-tb-gateway-1  |   File "/usr/local/lib/python3.10/site-packages/grpc/_compression.py", line 15, in <module>
tb-gateway-tb-gateway-1  |     from grpc._cython import cygrpc
tb-gateway-tb-gateway-1  | ImportError: /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.33' not found (required by /usr/local/lib/python3.10/site-packages/grpc/_cython/cygrpc.cpython-310-arm-linux-gnueabihf.so)
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:35" - |INFO| - [tb_loader.py] - tb_loader - import_module - 68 - Import ModbusConnector from /thingsboard_gateway/connectors/modbus."
tb-gateway-tb-gateway-1  | ""2022-11-03 12:09:36" - |INFO| - [tb_gateway_service.py] - tb_gateway_service - __init__ - 252 - Gateway started."

Versions (please complete the following information):

• OS: Raspbian GNU/Linux 11 (bullseye)
• Thingsboard IoT Gateway version 3.2
• Python version set by Dockerfile (python:3.10-slim)